%0 Journal Article
%A Ohya, K.
%A Kawakami, R.
%A Tanabe, T.
%A Wada, M.
%A Ohgo, T.
%A Philipps, V.
%A Pospieszczyk, A.
%A Schweer, B.
%A Huber, A.
%A Rubel, M.
%A von Seggern, J.
%A Noda, N.
%T Simulation study of carbon and tungsten deposition on W/C twin test limiter in TEXTOR-94
%J Journal of nuclear materials
%V 283-287
%@ 0022-3115
%C Amsterdam [u.a.]
%I Elsevier Science
%M PreJuSER-37991
%P 1182 - 1186
%D 2001
%Z Record converted from VDB: 12.11.2012
%X In order to investigate the impurity release and surface modification on a W/C twin test limiter, made of a half of W and the other half of C, exposed to the edge plasma of TEXTOR-94, simulation calculations of ion-surface interaction are conducted by a Monte Carlo code. According to the calculations, experimentally observed spatial distributions of WI and CII line intensities around the W side of the limiter can be explained by physical sputtering of W, reflection of bombarding C ions and physical sputtering of implanted C. The CII line emission, resulting from thermal C atoms, around the C side of the limiter is suppressed by deposition of W, and the reflection of C ions from W deposited on C causes the CII intensity to decay more slowly than that from C without the deposition. Bombardment with deuterium edge plasmas, containing impurity W, produces a thick W layer on the C side of the limiter, whereas C implanted in the W side is strongly sputtered due to impact of most constituent D ions. (C) 2000 Elsevier Science B.V. All rights reserved.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000165877800092
%R 10.1016/S0022-3115(00)00172-0
%U https://juser.fz-juelich.de/record/37991